52 14 886 Replacing gas cartridge for crash-active headrest on left or right

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WARNING: Read and comply with SAFETY REGULATIONS for handling airbag modules and pyrotechnical belt tensioners.
Incorrect handling may result in triggering of the crash-active headrest and thereby cause injury.

Switch off the ignition!

Necessary preliminary tasks:

Adjust head restraint towards top to maximum extent
Disconnect BATTERY NEGATIVE CABLE

IMPORTANT: Renewal of firing unit may be carried out up to 4 times.
Triggering frequency is denoted on the sticker on the head restraint carrier.
Labels are available as spare parts.

Starting situation:

Head restraint is in the crash position after activation.

NOTE: Firing unit can only be removed in the triggered state.
The complete head restraint must be replaced in the event of a crash-active headrest fault message and non-activated igniter.

Fig 1: Identifying Head Restraint In Crash Position

G10063269

Courtesy of BMW OF NORTH AMERICA, INC.

Lever out cover welt in marked area.

Remove cover with padding from head restraint.

Fig 2: Removing Cover With Padding From Head Restraint

G10063270

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip service flap.

Move firing unit (1) forwards and remove towards front.

Fig 3: Removing Firing Unit

G10063271

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1) and disconnect.

Replace firing unit.

Installation note:

Plug connection (1) must audibly snap into place.

Check firm engagement of plug connection (1) by gently pulling on connector.

Lay cable in side guide.

Fig 4: Identifying Plug Connection

G10063272

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: This work requires a great exertion of effort!

Pull head restraint (1) at an angle downwards until it is completely in lowest position and rests on linkage.

Hold head restraint (1) in this position for the following tasks.

Fig 5: Pulling Head Restraint Downward To Lowest Position

G10063273

Courtesy of BMW OF NORTH AMERICA, INC.

Clip firing unit (1) onto linkage (2).

Installation note:

Check that firing unit (1) is firmly seated on linkage.

Press firing unit (1) forwards and clip into place.

IMPORTANT: Firing unit (1) must audibly snap into place.

Fig 6: Installing Firing Unit

G10063274

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Visually check that firing unit is correctly seated.

Attach label for identification after replacement.

Clip service flap into place.

Fig 7: Clipping Service Flap Into Place

G10063275

Courtesy of BMW OF NORTH AMERICA, INC.